﻿<!DOCTYPE html>
<html lang="en">
<head>
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	content="width=device-width, initial-scale=1.0">
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    <title>Document</title>
	<style>
		#div1{width:200px;height:100px;background:#ccc;display:none;}

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<input id="cBox" type="checkbox" onmouseover="document.getElementById('div1').style.display='block';"
onmouseout="document.getElementById('div1').st  yle.display='none';"
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<div id="div1">
	为了您的信息安全。。
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